DocumentCode
3346976
Title
Notice of Retraction
Killing of Bacillus subtilis by Exogenous Hydroxyl Radicals
Author
Wu Chun-du ; Hou Ke-hui ; He Hua-gang ; Zhu Shan-ying ; Shi Lan ; Yi Cheng-wu ; Chu Jin-yu
Author_Institution
Sch. of Environ., Jiangsu Univ., Zhenjiang, China
fYear
2011
fDate
10-12 May 2011
Firstpage
1
Lastpage
4
Abstract
Notice of Retraction
After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.
We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.
The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.
In this study, we used Bacillus subtilis 168, a spore-producing gram-positive bacterium, as a model to reveal the effects and mechanisms of killing by exogenous hydroxyl radical (OH·). The results showed that, exogenous OH· could kill B. subtilis efficiently. Nearly 99% of them was killed in 0.3 mg/L OH· solution, and 100% in 0.8 mg/L OH· solution. The exogenous OH· could damage biomolecules of B. subtilis. The quantity and the integrities of DNA, RNA and protein decreased with the increasing concentration of OH·. The activities of superoxide dismutase (SOD), catalase (CAT) and the content of H2O2, were analyzed after treated with different concentration of exogenous OH·. The results indicated that, the content of H2O2 was decreased, the activities of SOD and CAT were also changed.
After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.
We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.
The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.
In this study, we used Bacillus subtilis 168, a spore-producing gram-positive bacterium, as a model to reveal the effects and mechanisms of killing by exogenous hydroxyl radical (OH·). The results showed that, exogenous OH· could kill B. subtilis efficiently. Nearly 99% of them was killed in 0.3 mg/L OH· solution, and 100% in 0.8 mg/L OH· solution. The exogenous OH· could damage biomolecules of B. subtilis. The quantity and the integrities of DNA, RNA and protein decreased with the increasing concentration of OH·. The activities of superoxide dismutase (SOD), catalase (CAT) and the content of H2O2, were analyzed after treated with different concentration of exogenous OH·. The results indicated that, the content of H2O2 was decreased, the activities of SOD and CAT were also changed.
Keywords
DNA; antibacterial activity; biochemistry; biological techniques; cellular biophysics; enzymes; free radical reactions; microorganisms; DNA; RNA; bacillus subtilis 168; biomolecule damage; catalase; exogenous OH; exogenous hydroxyl radicals; protein; spore-producing gram-positive bacterium; superoxide dismutase; DNA; Microorganisms; Molecular biophysics; Protein engineering; Proteins; RNA;
fLanguage
English
Publisher
ieee
Conference_Titel
Bioinformatics and Biomedical Engineering, (iCBBE) 2011 5th International Conference on
Conference_Location
Wuhan
ISSN
2151-7614
Print_ISBN
978-1-4244-5088-6
Type
conf
DOI
10.1109/icbbe.2011.5781614
Filename
5781614
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